I do not work that market, so take this with a grain of salt.
What sort of investing interests you? Shopping malls, single family homes, industrial space, etc. I've referenced the city's redevelopment department, a great resource for finding what financial incentives might be available for investors.
Lancaster is a major hub for transportation, and is still transitioning for a defense base to other industries. The relatively inexpensive land has allowed for a great deal of development, so at the moment there is a lot of inventory.
The Antelope Valley Multiple Listing Service currently shows:
41 income properties available
1,521 Residential listings for sale
So it's a buyer's market in housing, a great time to buy when others need to sell.
This has been a broad overview, hope that it is helpful.